Someone who meets euthanasia standards in a state volunteers to do it.

If I was terminal, it's something I'd consider. For science.

But I don't think I'd do it so they can kill people with less remorse.

Talked myself into a corner there. But a bloodless, mess-less, painless way to die could be useful to people who want to die with dignity.

In my opinion, the only morally acceptable next step is abolishing the death penalty. But, if I objected solely on the basis of the medical experimentation angle, an extensive formal review of the body of evidence by a panel of actual medical experts, plus not using as a subject a guy who already underwent one botched execution, at the very least?